not right in the head
Mentally unsound, as in Physically, she's quite healthy for ninety, but we suspect she's not right in the head. This usage was first recorded as right in his wits in 1662.
Words nearby not right in the head
How to use not right in the head in a sentence
I disapprove of what you say, but I will defend to the death your right to say it.
France 24 is providing live, round-the-clock coverage of both scenes as they progress.
Everywhere I go, ‘Hey Cartman, you must like Family Guy, right?’
Charlie ridiculed my faith and culture and I died defending his right to do so.
The gunman hardly broke stride as he nonetheless shot Merabet in the head, killing him.
What need to look to right or left when you are swallowing up free mile after mile of dizzying road?The Joyous Adventures of Aristide Pujol|William J. Locke
Madame Ratignolle, more careful of her complexion, had twined a gauze veil about her head.The Awakening and Selected Short Stories|Kate Chopin
Mrs. Wurzel was quite right; they had been supplied, regardless of cost, from Messrs. Rochet and Stole's well-known establishment.The Pit Town Coronet, Volume I (of 3)|Charles James Wills
She is quite true, but not wise, and your left hand must not know what your right hand is doing.Checkmate|Joseph Sheridan Le Fanu
Only in the carnage of the head, the tilt of the chin, was the insolence expressed that had made her many enemies.Ancestors|Gertrude Atherton